Gasifying apparatus.



i a 3 i i Patented 8, 1919.

D. H. JEFFERSON.

' GASIFYING APPARATUS. KPPUCATIIQN FlLED mm: 12. 191

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312i. JEFFERSON, OF L; .ANGELES, CALIFORNIA, ASSIGNOR 0F ONEHALF TO Filth MK ANDRES, OF ALHAMBRA, CALIFORNIA.

GASIIF'YING APPARATUS.

Specification of Letters Patent.

1 Patented Apr. 8, 1919.

Application filed June 12, I918. Seria1No.239,517.

b all whom it may concern it known that l, DANIEL H, JEFFERSON, it sun;

'Ci? of the King of Great Britain, re-

' r at Los Angeles, in the county of Los and Fltate of California,-lmve innew and useful Improvements in ying Apparatus, of which the follow ing 1s specification.

This invention relates to gasifying appalll ratus and it has for its object to provide apparatus of the character stated whereby liquids which are susceptible of being gasified may be readily converted into gases as required. for use. My improved apparatus to is particularly useful in fumigating work,

such the fumigation of fruit trees and the like, where it is desired to subject the trees to the action of a germicidal gas to the end that and other parasitic growths on the so tree may be destroyed; for this purpose a liquefied product, hydro-cyanic acid, genere-ted the reaction between SDdlLlll'l cyanid,

sulfuric acid and water, or other liquid havthe reouired qualities, may be employed, 5253i and in h liquid, or liquefied is usually I brougl .o the, field of use ii /suitable tanks con 11ers from which ,it may be transferred '1 mv; npparetuafor gnsifying and the tree, the preferred practo cover the tree to be treated with .or like, .and then introduce the l liquid thereunder as by means of a e nozzle device.

ance with my invention a suitacle or tank having a preferably measuring discharge pumping means is provided, such pumping means may be arranged to deliver liquid into a receiver where air under pressure is applied thereto and to which receiver is preferably in the form of a helix of tubing the helix being shown as having its axis horizontally disposed, a discharge nozzle device adopted for insertion benes h tent being connected to the helix Furl 110239, a. vent pipe may be provided at top f the receptacle to permit the surge of air in compensation liquid level and such vent ly bent downwardly and exe? u coni'iection pipe between the nestle device where it termie caping fumesor deremote froin the operators possibility of danger to the epcmtor removed" The air supply means upon a suitable base and so'rendered portable to facilitate the work of fumigation. The tank or receptacle may be provided with a filling orifice through which liquid or liquefied gas may be placed therein, as by connecting a supply pipe leading from the ship ping tank therewith; by extending such supply pipe to the bottom of the shipping tank and admitting fluid pressure to the shipping. tank a convenient method of transferring the liquefied gas may be used. I

The invention has for a further object the provision of improved gasifying apparatus which will be superior in point of relative simplicity and inexpensiveness of construction and organization in connection with safety and convenience in use, positiveness in operation and freedom from liability to get out of order. v i

With the above and other objects in View, the invention consists in the novel and useful provision, formation, construction, combination association and relative arrnnge-v 30 ment of parts, members and features, all as hereinafter described, shown in the drawing, and finally pointed out in claims.

In the drawing:

The figure is a side. elevation, partly in section for clearness of illustration, of apparatus constructed and organized in accordnnce with the invention.

The several parts in the figure are designated by reference characters;

Referring with particularity to the drawing, in the embodiment of the invention therein shown 1 designates a tank or receptacle having an inlet orifice at 2 normally sealed by a removable threaded plug 3,;but shown as connected by means of a supply pipe 4 with a liquid containing shipping?- tnnk 5. One end 4 of the pipe 4 is connected to the tank 1 as by a rubber tube 4' fitted into the orifice 2 and the other end 4 I of thqpipe fl extends to a point near the provided. 'A piston rod 11 is connectedat its lower end to the piston 11 and extends therefrom through the tank passing out of the tank through a packing device -12 and terminating in a handle 13 at its upper end. Below the handle 13 and abovethe tank 1,

- the rod 11 is provided with a slidable finger- 15'adapted to contact with a collar 15 secured to the rod 11. I A vertical gage member 16 projects upwardly from the top of the tank 1 and parallel to the piston rod 11 and such gage member 16 has a series of notches 16 into any one of which the finger 15 may be positioned by rotating it on the rod 11. At the edge of the gage member opposite the notched edge a series of projecting pins 16 are provided, each such pin be ing in registration with a notch 16. Several lengths of pins.16 may be employed, so that long pinsarearranged with short pins and pins of an intermediate length between them, whereby the correct setting of the finger 15 in one of the notches 16 may be made in the dark, as by operator finding the position of the required notch by counting long ins from one end of the series and then the required short or intermediate pins.

A pipe 17 leads from the discharge duct 10 to a hollow arm 18* of a coupling member 18, a check valve 18 being'positioned in such arm, and a pipe 19 has one end connected to an opposite and preferably higher hollow arm 18 of the coupling member 18,

in whichhollow arm 18 a check valve 18; is disposed. The other end of the pipe 19 is connected with the discharge duct .20 of an air pump cylinder 21 in which cylinder 21 a,piston 21 is arranged for reciprocation by means of a piston rod 22 having a handle 23. A check valve 24 is provided in the duct 20. a

The coupling member 18 is preferably located at about the level of the top' of the tank 1 and has a downwardly ranging hollow discharge arm to which the inlet of .a receiver 25 is connected as at 25. The preferred form of receiver is a helix of tubing the convolutions 25" of which are vertically disposed. At the discharge end, the receiver is connected by means of a discharge pipe 25, which may be integral therewith, to a nozzle device 26 which ispreferably spaceda short distance from the remaining portions of the apparatus so that it may be inserted'beneath a'tent. r

The discharge pipe 25 is shown as bifurcated at its discharge end as at 25 and a discharge nozzle 26 of any suitable design is fitted to, each of the arms constituting the bifurcated end 25.".

The pump cylinder 10 rests upon a base 27 at its head 10 and so supports the. tank 1, and the lower end of the air pump cylinder 21 is secured to the base; at the top'of the tank 1 a peripheral band 28 is provided and such band may pass about the air pump cylinder 21 near its upper end and so unite the tank and air pump cylinder. A handle 29 has one of its ends secured to 'the tank 1 near the packing device 12 and has itsother end connected to the band 28. near the air pump'thus providing means whereby the device may be readily transported from tree to tree as the work proceeds, the position. of

the handle providing for balance of the ap: paratus about the handle.

A vent pipe 30 is connected with the top of the tank 1 and extends downwardly therefrom to the plane of the discharge pipe which it parallels to the nozzle, so carrying fumes or vapors forced through the vent pipe in filling the apparatus to a point remote from the operators position as the filling proceeds.

A liquid level indicating gage 31 having a dial 32 positioned at the top of the tank 1 is provided in the tank.

An illuminating means such as an electric light globe 32 mounted upon the tank permits reading the liquid level gage and the metering gage constituted by the notched member 16, finger 15, and collar 15*.

The operation, method of use and advantanges of the invention will be readily understood from the foregoing disclosure, taken in connection with the accompanying drawing and the following statement:

1 The tank 1 may be filled by inserting the rubber tube 4' of the pipe 4 leading from the shipping tank into the orifice 2 and aldmitting suitable pressure medium to the shipping tank to force a supply of the conparatus may now be carried to a tree which has been covered withla tent and the dis I charge nozzle device inserted beneath the tent. The cubic contents of the tent may be estimated, and asdifierent'sizes of trees sup;

port the tents so that various cubic contents are met-with in carrying on fumigating work, a charge of the liquefied gas proportionate to the tent contents may be used, and. the required charge is measured by feeling along the pins 16 and so locating the proper notch into which the finger 15 caught by rotating the same about the rod 11, it being understood. that the measuring discharge pump piston 11 is at the bottom of its cylinder 10. The member 16 may be provided with 'indicia' 16 whereby the proper notch 16 to correspond to a given tent capacity may be indicated; an operator after familiarizing himself with the,

scale or indicia reading in terms of cubic contents of tent or of cylinder charge may properly position the finger 15 in the required notch by feeling and counting the pins 16", and so locating the notch desired. As the piston 11 is moved upwardly by means of the handle 13 the collar 15 on the piston rod strikes the finger 15 and so limits upward travel of the piston 11 with the result that a'definite charge of liquefied gas is inducted to the space in the cylinder 10 below the piston 11, the check valve 11 permitting such induction to the lower portion of the cylinder through the duct 11. The piston 11 is now forced downwardly through the handle 13 and rod 11 to the lowermost limit of its travel and the measured charge is forcec or transferred past the check valves 10 and 18 and through the member 18 into the IQCQlVBI' WhGIG it is subjected to the expelling action of a body of compressed air supplied by forcing the air pump piston 21 downwardly by means of its operating handle 23 and rod 22. As many strokes of the air pump piston may be made as are required to force the entire charge through the receiver, discharge pipe and nozzle device and so gasify the charge, the air being forced past the check valve 24-, through the-pipe 19, past the check valve 18 through the member 18 and into the receiver.

Having thus disclosed my invention, I claim and desire to secure by Letters Patent:

1. In apparatus of the character disclosed, a receiving receptacle adapted to contain liquefied gas, means for discharging a predetermined charge of such liquefied gas therefrom, a receiver adapted to receive said char e and ressure means for e'ectincr said charge from said receiver to gasify the same.

*2. in apparatus of the character disclosed,

a receiving meceptacle adapted to contain liquefied. gas, means for discharging a predetermined charge of such liquefied gas therefrom, a receiver adapted to receive said charge, and pressure means for ejecting said charge from said receiver to gasify the same; there being a nozzle device connected with said receiver and through which said charge is eiected.

3. In apparatus of the character disclosed,-

a receiving receptacle adapted to contain liquefied gas, means for discharging aspire-v,

determined charge m. such liqiiefied-' gas therefrom, a receiver adapted to receive said charge, and pressure means for ejecting said charge, and pressure means for ejecting said charge from said receiver to gasify the same; said pressure means comprising an air compressor adapted to deliver a charge of air behind the charge of liquefied gas in the receiver; there being a nozzle device connected with said /receiver and through which the charge is ejected for application to an object to be fumigated.

5. In fumigating apparatus, a liquefied gas receiving receptacle, a discharge pump having communication with said receptacle, means for actuating said pump, a receiver, means for measuring a charge oi. liquefied gas to be transferred'by said pump' to said receiver, an air compressor connected to said receiver, means to actuate said air compressor whereby a charge of air may be placed in. the receiver to expel the charge of liquefied gas, and a projecting nozzle connected to said receiver and through which the charge of liquefied gas is expelled to gasify the same. I

6. In fumigating apparatus, a liquefied gas receiving receptacle, a discharge pump having communication with said receptacle,

means for actuating said pump, a receiver,

liquefied gas, and a projecting nozzle con nected to said receiver and through which the charge of liquefied gas is expelled to gasify the same; said measuring means comprising means for limiting the capacity of the pump.

7. In fumigating apparatus, a liquefied gas receiving receptacle, a discharge pump having communication with said receptacle, means for actuating said pump, a receiver, means for measuring a charge of liquefied. gas to be transferred by said pump to said receiver, an air compressor connected to said receiver, means to actuate said air compressor whereby a charge of air may be placed in the receiverto expel the charge of liquefied gas, and a projecting nozzle connectedto said receiver and through Which placed in the receiver to expel the charge of liquefied gas, and a projecting nozzle connected to said receiver and through which the charge of liquefied gas is expelled'to gasify the same; said measuring means comprising means for limiting the capacity of the pump and said receiver comprising a helical tube having vertically disposed convolutions.

Intestimony whereof, I have signed my name to this specification in the presence of two subscribing witness es.

' DANIEL H. JEFFERSON.

Witnesses; v

L. D. FITZGERALD, J. W. BURNS. 

